Keymate: objects disappear from object list

Hey guys,
An interesting issue I just ran into: When I open a new scene file and click on Keymate, I see a list of all my objects populated in Keymate. However, when I click from TR to TRSV in keymate, half my objects disappear from the keymate list (including all my cameras and lights). If I try to click back to TR, nothing happens; the objects are still missing.
Any ideas what the issue may be here?
Comments
After playing around a little more, it appears that hidden objects are those that disappear from the list. However, when unhiding those object, they do not reappear again. They remain hidden from the keymate list, even though they are visible in the scene.
It is an issue. A workaround is just make the object visible again, save your work and reload it again. It will reappear in the keymate's timeline.
This is an ugly issue. A better design would be to allow us to choose which objects appear in keymate. I end up with a mess with my characters because there are a dozen objects between clothing, hair & jewelry that CLutter up the timeline. It would be nice to be able to choose to hid those from the the timeline.